Grain boundary misorientation and texture development in friction stir welded SiCp/Al-Cu-Mg composite

被引：28
作者：
Feng, A. H. [1 ]
Xiao, B. L. [1 ]
Ma, Z. Y. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 497卷 / 1-2期
关键词：
Friction stir welding; Composite materials; Grain boundaries; Texture;
D O I：
10.1016/j.msea.2008.07.044
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Eight millimeter thick extruded 15 vol.% SiCp/Al-Cu-Mg composite was friction stir welded (FSW) and Subjected to subsequent post-weld T4 temper. The grain boundary misorientation relationship in the nugget zone (NZ) was studied by using Kikuchi's-line technique of transmission electron microscopy. Texture development during FSW was examined by using X-ray diffractometry and subsequent orientation distribution function (ODF) analysis. It was revealed that the NZ was characterized by fine and equiaxed recrystallized grains with dominant high angle grain boundaries. Compared to that in the extruded composite, the texture in the NZ was significantly weakened. Post-weld T4 temper did not change the grain boundary characteristics and the texture orientation. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：515 / 518
页数：4
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